Complete inbox CLI implementation

internal/cli/inbox/done.go

@@ -15,6 +15,7 @@ type completeOptions struct {
 	threadID    string
 	summary     string
 	body        string
+	bodyFile    string
 	payloadJSON string
 }
 
@@ -43,6 +44,11 @@ func newCompleteCmd(root *rootOptions, mode string) *cobra.Command {
 				return fmt.Errorf("agent is required")
 			}
 
+			body, err := resolveBodyValue(opts.body, opts.bodyFile)
+			if err != nil {
+				return err
+			}
+
 			sqlDB, err := db.Open(ctx, root.dbPath)
 			if err != nil {
 				return err
@@ -54,7 +60,7 @@ func newCompleteCmd(root *rootOptions, mode string) *cobra.Command {
 				ThreadID:    opts.threadID,
 				Agent:       agent,
 				Summary:     opts.summary,
-				Body:        opts.body,
+				Body:        body,
 				PayloadJSON: opts.payloadJSON,
 				Failed:      mode == "fail",
 			})
@@ -84,6 +90,7 @@ func newCompleteCmd(root *rootOptions, mode string) *cobra.Command {
 	cmd.Flags().StringVar(&opts.threadID, "thread", "", "Thread ID")
 	cmd.Flags().StringVar(&opts.summary, "summary", "", "Short completion summary")
 	cmd.Flags().StringVar(&opts.body, "body", "", "Completion body")
+	cmd.Flags().StringVar(&opts.bodyFile, "body-file", "", "Read completion body from file")
 	cmd.Flags().StringVar(&opts.payloadJSON, "payload-json", "", "Structured payload JSON string")
 
 	_ = cmd.MarkFlagRequired("thread")